Hand-operated nebulizer.



F. c. Donn/15m. HAND OPERATED NEBULIZER. APPLICATION FILED JUNE 20 19H.

Patented 11911111919.

ATTORNEY v n.: mums uns cov, mamunw., nummern, n. c.

UNTTED STATES PATENT OFFTCE.

FRANK C. DORMENT, OF DETROIT, MICHIGAN, ASSIGNOR TO THE ROGERS ELECTRICLABORATORIES COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF MAINE.

HAND-OPERATED NEBULIZER.

Specification of Letters Patent.

Patented Feb. 11, 1919.

Application led J une 20, 1531.7` Serial No. 175,772.

To all whom t may concern:

Be it known that .1, FRANK C. DORMENT, citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Hand-OperatedNebulizers, of which the following is a specilication.

The invention relates to a nebulizing or atomizing device adapted forpersonal use in applying medicaments to the nostrils or throat as wellas for other purposes, such as spraying the face with antiseptics aftershaving and for applying perfumery and the like, all substantially asshown and described and particularly pointed out in the claims.

1n the accompanying drawings, Figure 1 is a vertical sectional elevationof the device taken through the body and nozzle thereof, and Fig. 2 is asectional elevation at right angles to Fig. 1 on a line corresponding to2 2, Fig. 1. Fig. 3 is a plan view on line 3--3, Fig. 1, and Fig. 4 is aplan View on line 4 4, Fig. 1. Fig. 5 is a detail of the flexible diskat the bottom of the body next beneath the spring therein.

The device as thus shown is a comparatively small article, having acylindrical body b less than three inches in length as ordinarily madeand cast or provided with a cup or well 'w upon the outside thereof atan inclination to the body and adapted to receive the medicament orother liquid, or powdered substance if found useful in this way.

The body b also has certain other distinguishing characteristics, suchas the false disk shaped bottom 2 which is supported about its edgeslightly above the bottom proper 3, to provide an air space which isopen to the air inlet perforations 4 about the side and bottom of thebody, and said false bottom has a central opening 6 and is overlaid by aleather or other iiexible disk d which has a flap valve o at its middlenormally adapted to close the said opening 6. A spiral wire spring sbears upon said disk and holds it down in place, and the plunger piston7 bears on the top of said spring and is raised thereby on the returnstroke after each operation or depression of the plunger. A cap c withan annular iange is screwed into the top of body Z) and limits the upstroke of the plunger, and said plunger has a stem 8 projected throughsaid cap and provided with a button 9 on its top adapted to be engagedby the finger to depressthe plunger and thus operate the device. Or, incase theidevice is to be packed for shipping or the like, the plungercan be depressed its full stroke and held down by means of the pin 10transversely through the top of the stem entering through thecorresponding slots 11 in the cap and adapted to be rotated to bearagainst the bottom of the cap and to be held down. thereby.

The cup or well 'w is preferably of conical shape, tapering downward,and has an annular portion or extension about its top in which the hood14 of the nozzle member fn. is seated with a close fitting screwengagement. The said nozzle member or nozzle proper has an annularinward extension 15 projecting centrally into said hood 14 and is ofsu-ch depth as to provide an annular chamber or space between the wallof said extension and the wall of the hood which will receive the liquidin case the device is turned over or inverted and prevent possiblespilling or leaking out of the liquid.

Now, the means entering more directly into the nebulizing or atomizingoperation or efl'ect comprise a pipe or stem 18 which projects upwardcentrally in the well w to a point just beneath the extension 15 of thenozzle and has an air duct 2O which leads into the bottom of body b andopens into said body through a recess 21 in the edge of disk CZ. Thesaid stem or pipe 18 also is provided with an externally threadedenlargement at its top provided with two small slots or channels 22lengthwise externally, and a tubular nipple 25 is sleeved over the saidstem, and is of such larger dimensions than the said stem in crosssection as to leave an annular space between the same and the stem toprovide a channel for the liquid from the well 'w under the suctioninduced b-y the plunger in said space. To this end the nipple extendsinto said well relatively near to the bottom thereof and dips into theliquid therein, and is screw threaded onto the upper end of the stemover the channels 22 and is provided with a head having an internalspa-ce about the point of the stem 18 and a central orifice throughwhich the spray is delivered into the nozzle n.

It will be noticed that the said nipple projects slightly into the innernozzle extension 15, and is in such relations thereto that injection' isforcibly sustained through the nozzle notwithstanding air that isentrained therewith from Within the hood 14. In fact I rind that I canemploy a baille or dash 30 in the line of the injection and Which inthis instance is in the form of a damper in a stove pipe and fixed on arotatable spindle 31 in aswell n the nozzle. The said baffle may beturned more or less, and in any position contributes to the nebulizationof the fluid Without detracting from its delivery inthe desired forceand volume. A tapered rubber ring-shaped guard or stopper surmounts theVnozzle mand is especially adapted for nasal injection or inhalation.

What I claim is:

LA device as described having a hollow body and a laterally inclinedliquid receptacle rigid with the side thereof provided witha separatehood and aseparate nozzle mounted on said hood and projecting therein,incombination With nebulizing means for the liquid projecting into saidreceptacle and in fluid-tight relation therewith and comprising a pipestem having an air duct through the same open to the bottom of saidbody, and a tubular nipple sleeved over and apart from said stem havingits point of discharge Within'V the mouth of said nozzle and itslowerend open and adapted to dip into liquid in the receptacle.

2. A device as described having a hollow body provided With openings toreceive air through the bottom thereof and to discharge the airtherefrom and a piston therein, and

a liquid receptacle fixed to the side of said body, a pipe stem havingan air duct open to said body and extending into said receptacle throughthe bottom thereof and provided With an externally threaded top portionhaving air channels lengthwise on its outside across said threads, atubular nipple sleeved over said stem and having screw engagement :withsaid top portion and dipping into the bottom of said receptacle, a

dome on said receptacle and a hooded nozzle fixed in said dome in lineWith said nipple and pipestem and surrounding the point oi said nipple.

3. In a hand operated nebulizer, a holloW body provided with openings toreceive air and to discharge kthe air therefrom and a piston therein, aliquid receptacle fixed toV the side of said body, a pipe stem having anair duct open to said body and extendingy Signed at Cleveland, Vin thecounty ofV Cuyahoga, and State of Ohio, this 23rd day of May, 1917. Y

FRANK C. DORMENT.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

